Lamp



FIG. 1 is a front view of a lamp, showing our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top and front perspective view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof.

The features shown in broken lines depict surface characteristics of thelamp that form no part of the claimed design.

CLAIM The ornamental design for a lamp, as shown and described.